The final scene of "Stranger Things 2" was about as perfect as can be. From Dustin's totally tubular new Steve-inspired hairdo to Mike and Eleven's sweet reunion, the middle school Snow Ball dance was a phenomenal way to close out season two.

When INSIDER spoke with David Harbour, who plays Jim Hopper, we had to ask him one simple question: Did Hopper really help Eleven get ready for the school dance?

"There are two great mysteries of 'Stranger Things' and they have nothing to do with monsters or the Upside Down," Harbour said. "One great mystery is how Joyce and Hopper managed to put together that map of scribbles that Will drew. That is a tremendous mystery to all of us. And the second mystery is how the hell did Jim Hopper do Eleven's hair and makeup as well as he did?"

Eleven arriving to the Snow Ball. Netflix

Fans have been emotional at the thought of Hopper helping his newly adopted daughter "Jane," aka Eleven, get ready for her first middle school dance.

Harbour is definitely giving Hopper all the credit for helping Eleven in his new official role as father.

"Maybe there is a secret talent that we don't know about Jim Hopper and his cosmetology school upbringing," Harbour said. "I think one of the things that is interesting is how this is a big deal, for him to let her have that night out."

Hopper and Eleven in their new home. Netflix

In addition to Eleven's new dress, Hopper also gave her an important accessory — the blue bracelet he always wears.

Harbour told INSIDER the meaning behind the bracelet, which you can read more about here. The bracelet is an old hair tie his daughter, Sara, used to wear. Hopper keeps it around his wrist as a reminder of "his struggles and his guilt around not being about to save his child," as Harbour explained.

But Eleven is wearing it at the Snow Ball, signaling that Hopper has given this precious memento to his newly adopted daughter.

Eleven wearing the bracelet Hopper gave to her. Netflix

"I don't want to get too into that because that's something we may talk about sometime in season three," Harbour said. "It's something we'll delve more into in terms of Jim's daughter and him confronting this Eleven relationship and what that means."

Even though Harbour didn't want to elaborate on the connections between Eleven and Sara, he wasn't shy about explaining how important the Snow Ball night was for both Hopper and Eleven.

"Someone [online] caught me in an off-camera thing and I have a tie on," Harbour said. "The idea was perhaps that Hopper even puts on a tie for the first time in 20 years to bring his adopted daughter to this dance. So I think Hopper put a lot of effort and work into it, so maybe he went to Marissa, the librarian, and got some books out on how to do little girls' makeup."

"So if it was done well, he doesn't only build trip wires and know how to kill Demogorgons — this guy is also an amazing makeup artist," Harbour said. "You're welcome internet."